VSR-10/SSG10 M165 Upgrade Spring

I think to judge a spring seperatly doesn't makes sence. I changed my M145 spring (ACC T10, fully sealed) with this M165 and i had no perfromance improvement as i expected. 25-30 FPS more. So this spring works exaclty regarding their description. But i have no range improvement. So thumps up, for that spring, but not for my sniper configuration.

Increible.